1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4612-012:2011Aerospace series Cables,electrical, for general purpose,single and multicore assembly XLETFE Family Jacketed orscreened and jacketedPart 012: Nickel plated cop
2、per Operatingtemperatures, between 65 C and 150C Dual extruded wall for open applications, with jacket and screen(braid) - UV laser printable - Product standardBS EN 4612-012:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4612-012:2011.The UK participation
3、 in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contrac
4、t. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 75527 9ICS 49.060Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2011.Amendm
5、ents issued since publicationDate Text affectedBS EN 4612-012:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4612-012 October 2011 ICS 49.060 English Version Aerospace series - Cables, electrical, for general purpose, single and multicore assembly - XLETFE Family - Jacketed or screened and
6、 jacketed - Part 012: Nickel plated copper - Operating temperatures, between - 65 C and 150 C - Dual extruded wall for open applications, with jacket and screen (braid) - UV laser printable - Product standard Srie arospatiale - Cbles, lectriques, dusage gnral, mono et multiconducteurs - Famille XLET
7、FE - Gains ou blinds et gains - Partie 012: Cuivre nickel - Tempratures de fonctionnement comprises entre - 65 C et 150 C - Fil double isol pour applications externes, gain et blind (tress) - Marquable au laser UV - Norme de produit Luft- und Raumfahrt - Ein- und mehradrige elektrische Leitungen fr
8、allgemeine Verwendung - XLETFE Familie - Mit Mantel oder geschirmt und Mantel - Teil 012: Kupfer vernickelt - Betriebstemperaturen zwischen - 65 C und 150 C - Doppelt extrudierte Isolierung fr externe Verwendung, mit Mantel und Schirm (Geflecht) - UV-Laser bedruckbar - Produktnorm This European Stan
9、dard was approved by CEN on 20 August 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning
10、such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its
11、own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, It
12、aly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-10
13、00 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4612-012:2011: EBS EN 4612-012:2011EN 4612-012:2011 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms, definitions and symbols .44 Materials and
14、construction .55 Required characteristics .76 Quality assurance . 107 Designation . 118 Identification and marking . 119 Packaging, labelling and delivery lengths . 1110 Technical specification 11Annex A (normative) Formulae for calculating braid details . 12A.1 The filling factor Kfis given by the
15、following formula 12A.2 Lay factor . 12A.3 Coverage 12BS EN 4612-012:2011EN 4612-012:2011 (E) 3 Foreword This document (EN 4612-012:2011) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance
16、with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an id
17、entical text or by endorsement, at the latest by April 2012, and conflicting national standards shall be withdrawn at the latest by April 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held r
18、esponsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, F
19、inland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 4612-012:2011EN 4612-012:2011 (E) 4 1 Scope This European Standard spe
20、cifies the characteristics of UV laser printable jacket, nickel plated copper conductor, electrical cables Crosslinked Ethylene Tetra Fluoro Ethylene co-polymer (XLETFE) family for use in the on-board electrical systems of aircraft at operating temperatures between 65 C and 150 C, operating at volta
21、ges not exceeding 600 V r.m.s and frequencies not exceeding 2 000 Hz. These cables are suitable for airframe use without additional protection. In case of conflict between this standard and other referenced documents the requirements of this standard shall take precedence. 2 Normative references The
22、 following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2083, Aerospace series Copper and copper alloys c
23、onductors for electrical cables Product standard EN 2235, Aerospace series Single and multicore electrical cables, screened and jacketed EN 3475-100 (all parts), Aerospace series Cables, electrical, aircraft use Test methods Part 100: General EN 4611-007, Aerospace series Cables, electrical, for gen
24、eral purpose, single and multicore assembly XLETFE Family Part 007: Nickel plated copper Operating temperatures, between 65 C and 150 C Dual extruded wall for openapplications UV laser printable Product standard 1)EN 4612-002, Aerospace series Cables, electrical, for general purpose, single and mult
25、icore assembly XLETFE Family Jacketed or screened and jacketed Part 002: General EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts 3 Terms, definitions and symbols For the purposes of this document, the terms, definitions and symbols given in E
26、N 3475-100 apply. 1) Published as ASD-STAN Prestandard at the date of publication of this standard (www.asd-stan.org). BS EN 4612-012:2011EN 4612-012:2011 (E) 5 4 Materials and construction 4.1 Materials These cables shall consist of the following: cores according to EN 4611-007; number of cores 1 (
27、one) to 4 (four). 2 (two) core to 4 (four) core shall be twisted together according to EN 2235. Filler cores shall not be permitted. Screen: nickel plated copper stranded woven screen; for dimensions of strands, see Table 1; material according to EN 2083, tests according to EN 3475-100; construction
28、 according to EN 2235. Outer jacket: XLETFE; it shall be possible to mark the jacket by UV laser printing. 4.2 Construction See Table 1. BS EN 4612-012:2011EN 4612-012:2011 (E) 6 Table 1 Multicore screened and jacketed Number of cores Code for nominal section AWG a Linear resistanceat 20 C Screen st
29、rands nominal diameter Jacket thickness External diameter Mass /km mm mm mm kg/km max. min. max. max.1 001 b 26 160,0 0,10 0,15 1,98 7,89 002 b24 114,0 2,11 9,54 004 22 60,0 2,26 11,76 006 20 33,2 2,47 15,30 010 18 21,1 0,13 2,77 19,79 012 16 15,3 3,05 25,10 020 14 10,9 0,18 3,40 33,04 030 12 6,8 3,
30、91 46,60 2 001 b26 164,8 0,10 0,15 3,02 13,30 002 b24 117,4 3,28 16,80 004 22 61,8 3,65 20,90 006 20 34,2 4,10 28,10 010 18 21,7 0,13 4,66 36,60 012 16 15,8 5,25 47,40 020 14 11,2 0,18 5,92 61,61 030 12 7,0 6,83 90,70 3 001 b26 164,8 0,10 0,15 3,17 17,20 002 b24 117,4 3,47 22,10 004 22 61,8 3,88 27,
31、90 006 20 34,2 4,36 38,10 010 18 21,7 0,13 4,97 50,40 012 16 15,8 5,60 65,90 020 14 11,2 0,18 6,31 85,72 030 12 7,0 7,47 129,00 4 001 b26 164,8 0,10 0,15 3,48 21,30 002 b24 117,4 3,79 27,60 002 22 61,8 4,23 35,00 004 20 34,2 4,76 48,40 006 18 21,7 0,13 5,45 64,30 010 16 15,8 0,18 6,15 84,60 012 14 1
32、1,2 7,01 111,46 020 12 7,0 8,24 167,00 aAWG = Closest American Wire Gage. bNickel plated copper alloy component conductor. BS EN 4612-012:2011EN 4612-012:2011 (E) 7 4.3 Colour coding of cores and jacket See EN 4612-002. 5 Required characteristics According to EN 2235 and EN 3475-100. See Table 2. Ta
33、ble 2 EN 3475- Test Details 201 Visual examination Applicable 202 Mass Applicable; see Table 1. 203 Dimensions Applicable; see Table 1. Lay Factor Less than 3 in accordance with Annex A (normative). Screen coverage, see EN 2235. Applicable not less than 85 % in accordance with Annex A (normative). 3
34、01 Ohmic resistance per unit length Applicable; see Table 1. 302 Voltage proof test Applicable 303 Insulation resistance Applicable (20 2) C, 500 M.km minimum (95 2) C, 1 M.km minimum 304 Surface resistance Not applicable 305 Overload resistance Not applicable 401 Accelerated ageing Applicable Tempe
35、rature (200 3) C 402 Shrinkage and delamination Applicable Temperature (150 5) C Maximum shrinkage at each end of cable: Jacket: 2 mm on size 001 to 010 3 mm on size 012 to 050 Cores: 0,80 mm on size 001 to 006 1,00 mm on size 010 to 012 1,20 mm on size 020 to 030 continued BS EN 4612-012:2011EN 461
36、2-012:2011 (E) 8 Table 2 (continued) EN 3475- Test Details 403 Delamination and blocking Applicable Temperature (150 5) C 404 Thermal shock Applicable Temperatures ( 65 2) C and (260 5) C Maximum shrinkage at each end of cable: Jacket: 2 mm on size 001 to 010 3 mm on size 012 to 050 Cores: 0,80 mm o
37、n size 001 to 006 1,00 mm on size 010 to 012 1,20 mm on size 020 to 030 405 Bending at ambient temperature Applicable 406 Cold bend test Applicable Temperature ( 65 2) C 407 Flammability Applicable Methods 1 and 2 Flame application 15 s Extinguishing time: 3 s max. 408 Fire resistance Not applicable
38、 409 Air-excluded ageing Not applicable 410 Thermal endurance Not applicable 411 Resistance to fluids Applicable Volume swell not greater than 10 % Scrape not applicable 412 Humidity resistance Applicable Method B Temperature (90 2) C Duration 672 hours 413 Wrap back test Not applicable 414 Differen
39、tial scanning calorimeter (DSC test) Not applicable continued BS EN 4612-012:2011EN 4612-012:2011 (E) 9 Table 2 (continued) EN 3475- Test Details 501 Dynamic cut-through Applicable to jackets of single core cables only Temperature (150 3) C Size code Nominal section Cut-throughforce to screen mm2N 0
40、01 0,15 7,5 002 0,20 10004 0,40 15 006 0,60010 1,00 012 1,20020 2,00 25 030 3,00502 Notch propagation Not applicable 503 Scrape abrasion Applicable to jackets of single core cables only Temperature (150 3) C Minimum number of cycles to screen = 100 Size code Nominal section Load mm2N 001 0,15 3,0 00
41、2 0,20 3,5 004 0,40 4,0 006 0,60 4,5 010 0,95 5,0 012 1,35 5,5 020 1,80 6,0 030 3,00 6,5 504 Torsion Not applicable 505 Tensile test on conductors and strands Applicable 506 Plating continuity Applicable 507 Adherence of plating Applicable continued BS EN 4612-012:2011EN 4612-012:2011 (E) 10 Table 2
42、 (concluded) EN 3475- Test Details 508 Plating thickness Not applicable 509 Solderability Not applicable 510 Tensile strength and elongation of extruded insulation, sheath and jacket material Applicable cable jacket Eb 75 % minimum TS 34 MPa minimum 511 Cable-to-cable abrasion Applicable (single cor
43、e) Load 1 kg 6 000 000 cycles to screen 512 Flexure endurance Not applicable 601 Smoke density Subject to agreement between customer and supplier 602 Toxicity Subject to agreement between customer and supplier 603 Resistance to wet arc tracking Not applicable 604 Resistance to dry arc propagation No
44、t applicable 605 Wet short circuit test Not applicable 701 Strippability and adherence of insulation to the conductor Not applicable 702 Screen pushback capability Applicable 703 Permanence of manufacturers marking Applicable 704 Flexibility Not applicable 705 Contrast measurement Applicable Laser m
45、arking K 50 % 706 Laser markability Not applicable 6 Quality assurance See EN 9133. BS EN 4612-012:2011EN 4612-012:2011 (E) 11 7 Designation EXAMPLE Description block CABLE, ELECTRICAL Identity block EN4612-012A010P Number of this standard Code letter for number of cores (see EN 4612-002) Code for n
46、ominal section (see Table 1) Code letter for colour coding of cores (see EN 4612-002) 8 Identification and marking See EN 4612-002. 9 Packaging, labelling and delivery lengths See EN 2235. 10 Technical specification See EN 2235. BS EN 4612-012:2011EN 4612-012:2011 (E) 12 Annex A (normative) Formulae
47、 for calculating braid details A.1 The filling factor Kfis given by the following formula 2122212+=LDDmndKwfwhere D is the mean diameter braid (i.e. diameter under braid + 2dr); dw is the effective width of one end; dr is the effective radial depth of one end; L is the lay length; m is the total num
48、ber of spindles; n is the total number of ends per spindle. A.2 Lay factor The lay factor (KL) is given by: 2221LDKL+= where D and L are defined in A.1 above. A.3 Coverage The percentage coverage is given by the formula: 100 (2KL KL2) This page deliberately left blankBSI is the independent national
49、body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.British Standards Institution (BSI)raising standards worldwideBSI Group Headquarters389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8
